.box {
  width: 500px;
  height: 500px;
  background: blue;
  margin: 0 auto;
}
.box:active p {
  background: #fff;
}
.box p {
  width: 400px;
  height: 300px;
  background: yellow;
}
.box p span {
  width: 100px;
  height: 100px;
  display: block;
  background: green;
}
.box p span a {
  color: red;
}
.box p span a:hover {
  color: pink;
}
